The Indiana Department of Transportation and Indiana State Police will be prohibiting large trucks from using the “collector” lanes of southbound I-65 and westbound I-70 during the South Split construction project.

While the main lanes are closed during the construction, drivers can still use the collector lanes to exit onto Michigan Street, New York Street, Ohio Street and Fletcher Avenue.  INDOT says semi drivers have been using those city streets to bypass the construction and re-enter the interstate.

INDOT says this causes traffic concerns as semis cannot negotiate the downtown turns without driving over curbs or into other traffic lanes.

State Police are assisting contractors this weekend to post additional overhead signage allowing police to enforce the prohibition of large trucks on the collector and in the downtown area.

State Police say trucks making local deliveries or pick-ups will be exempt.  All traffic is being asked to follow the designated detour on I-465 while the construction is going on.  The project is expected to be completed in November.